Here's how it goes
"People of the same trade seldom meet together, even for merriment and diversion, but the conversation ends in a conspiracy against the public"
- When righteous stuff sells . . the labels will be all about it
- When negative stuff sells . . the labels will be all about it
It's not a grand conspiracy to dumb down the listener or anything
. . but that's a whole different story,
The record industry includes both the financier (labels) and the outlets (radio stations)
TV channels, radio stations, billboards are all owned by advertising conglomerates, with the rare exception. Either Viacom or ClearChannel
The radio station demands a single of the label and in-turn the label demands a single of the artist.
Rarely do singles stray far from the tree or deviate from typical sound of the time, you seldom here an experimental work . . because experimenting is what artists do, not business professionals.
Let's go back to ClearChannel, they own radio stations, Billboards, TV stations, etc. All of these are platforms for advertisement. Long story short, every single you here on the radio is meant to uphold a platform for advertisements
The music industry does have a agenda and it's always reflective of the economic times. Right now the songs are meant to instill a feeling of 'live for the moment' . . 'nothing else matters but now' . . etc. To hear this, don't listen to the artists (all genres) that you hear on the top 10 . . they are just a mouthpiece and image, listen to the producers . . look at the track history of people like Dr. Luke, Benny Blanco. If somebody said the music industry has a focal point of eroding your morals they wouldn't be wrong, but Mr. Status Quo is going to be quick to jump up and say "the music industry just cares about money". Control the music and you control the masses.
Beyond that music is a cultural product, American pop music is heard around the world and essentially serves the purpose of increasing the brand power of the products we produce . . but we don't produce the products, those jobs have been outsourced. American corporations make the money and use every loophole to keep the money in their pockets. As long as Uncle Sam keeps getting fed it doesn't matter, the money is never meant to get back into circulation.
The government must build roads? Nope, private companies do that
The government must pay the private companies? Nope, tax payers do that
Why don't tax payers just pay the private companies directly? Tax payers aren't good at dealing with private companies
Did I go off subject? No . . control the music and you control the masses. The problem is that people don't understand the power of music
more while the artist continues to starve 
